Mater Sci Eng C Mater Biol Appl:改良钛表面可有效促进成骨

2019-05-15 不详 网络

在过去的几十年中,钛(Ti)植入物已被广泛用于修复骨折骨。为了促进骨生成,需要将骨诱导剂(例如重组人骨形态发生蛋白-2(rhBMP2))固定在Ti表面上。在本研究中,我们通过启动化学气相沉积(iCVD)技术制备了固定在甲基丙烯酸缩水甘油酯(GMA)沉积的Ti表面上的rhBMP2。制备后,通过物理化学分析表征生物功能化的Ti表面。通过细胞增殖,碱性磷酸酶活性,钙沉积和实时聚合酶链反应评估所开发的Ti

在过去的几十年中,钛(Ti)植入物已被广泛用于修复骨折骨。为了促进骨生成,需要将骨诱导剂(例如重组人骨形态发生蛋白-2(rhBMP2))固定在Ti表面上。在本研究中,我们通过启动化学气相沉积(iCVD)技术制备了固定在甲基丙烯酸缩水甘油酯(GMA)沉积的Ti表面上的rhBMP2。

制备后,通过物理化学分析表征生物功能化的Ti表面。通过细胞增殖,碱性磷酸酶活性,钙沉积和实时聚合酶链反应评估所开发的Ti,以验证它们对人脂肪来源的干细胞(hASC)的成骨活性。结果显示,与未处理的Ti相比,发现GMA沉积的Ti表面有效地固定了大剂量的rhBMP2。另外,固定在Ti上的rhBMP2显示出显着增强的成骨分化和增加的钙沉积,同时具有无毒的细胞活力。

总之,这些结果表明本研究策略可为骨组织工程应用制备骨诱导性Ti表面。

原始出处:

Youn YH, Lee SJ, et al., Simple and facile preparation of recombinant human bone morphogenetic protein-2 immobilized titanium implant via initiated chemical vapor deposition technique to promote osteogenesis for bone tissue engineering application. Mater Sci Eng C Mater Biol Appl. 2019 Jul;100:949-958. doi: 10.1016/j.msec.2019.03.048. Epub 2019 Mar 14.

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    2019-10-05 30397613
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    2020-01-31 柳叶一刀
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    2020-03-01 spoonycyy
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    2019-06-16 sunylz
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    2019-05-17 zhaojie88